Original catalogue drawing - NSK catalogue, page 195
Scanned from the manufacturer catalogue page listing this part number. All part numbers printed on that table share the same drawing.
Scale cross-section
Blue = inner / outer ring, yellow = rolling element. Drawn to scale from this part's own
dimensions for selection reference only - not a manufacturing or assembly drawing.
Dimension table (mm / inch)
Symbol
Dimension
mm
inch
d
Bore diameter
10
0.3937
D
Outside diameter
30
1.1811
B
Inner-ring / bearing width
9
0.3543
Notes
Weights are given in kg. Load ratings are shown in both the original catalogue units and the converted value (1 N = 0.2248 lbf). Data is provided for selection reference only - confirm against the latest official catalogue before ordering.
Main dimensions
Bore d (mm)
10
Bore d (in)
0.3937
Outside dia. D (mm)
30
Outside dia. D (in)
1.1811
Width B (mm)
9
Width B (in)
0.3543
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
1210
Basic static load rating Cor (lbs)
590
Limiting speed - grease (rpm)
57,500
Limiting speed - oil (rpm)
87,500
Weight
Weight (kg)
0.032
Mounting dimensions (fillets / shoulders)
Fillet ra (in)
0.024
Fillet rb (in)
0.012
Shaft shoulder da (in)
0.591
Housing shoulder Da (in)
0.984
Housing shoulder Db (in)
1.083
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 3,000 rpm
4
1,346
64
356
6
897
216
1,200
8
673
512
2,844
10
538
1,000
5,556
15
359
3,375
18,750
Basic rating life per ISO 281: L10 = (C/P)3 with C = 5,382 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.
Source & traceability
Brand
NSK
Source catalogue
NSK inch product catalogue
Catalogue page
p.197 (dimensions) / p.198 (ratings)
Dimensions in inches and millimetres, load ratings in lbs.
Send us the quantity you need and we will come back with price and
lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.
